Pasteurizing apparatus



July 21,1925

L. S. PFOUTS PASTEURIZIVNG APPARATUS Filed June 16, 1915 2 Sheets-Sheet l I mN I Strom/9,13

L. s. PFOUTS PASTEURIZING APPARATUS July 21, 1925.

` Filed June `16, 1916 2 Sheets-Sheet 2 Patented July 2l, 192.5.

UNITED STATES Pn'rslyr,forrlcla.4

LEROY S. PFOUTS, OF CANTON, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 TE H. H. MILLER INDUSTRIES COMPANY, F CANTON, OHIO,

A, CORPORATION OF PASTEURIZING APPARATUS( Applicationled June 16, 1916. i Serial No. 102L,129.

. p To @ZZ whom it may concern:

Be it known that I, LEROY S. ProU'frs, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in and Relating to Pasteurizing Apparatus, of which the following is a specification.

This invention relates to pasteurizing apparatus, and particularly -to apparatus adapted to treat liquid, such as milk.

One object of Ithe invention is to provide an improved apparatus for treating liquid, such -as milk.

Another object of the invention is to provide a liquid treating apparatus of simplified construction, the parts of which may be readily dismembered for cleaning.

Another object of thel invention is to provide improved liquid treating apparatusadapted to convey the liquid' to and from the holding tanks in a manner which prevents frothing,` undue agitation or splashing of the liquid.

` Another' object of the invention is to provide improved apparatus by which every lpart of the' liquid is discharged into and then from the holders to insure uniform treatment thereof; i l

"With these and other objects in view, the

invention consists of the part or parts and combinations of parts or their equivalents hereinafter described and set forth in .theI appended claims. y i

My inventionvis adapted for use in connection with liquid treating apparatus such asshown andv described in my Patent No. 1,183,764 datedA May` 16, 1916. It" will be understood, however, that my improvements in liquid'holding and distributing mechanism for pasteurizingapparatus may be used in connection with a liquid treating apparatus of any suitable or preferred construction, and while the embodiment of the invention'illustrated herein has been conformed to co-operate withl the general coni `struction of apparatus shown in my aforesaid pa\tent,.it may be adapted to suit any particular construction of apparatus Vin connection with which it may be used.v

For the purpose of illustration I have, in the accompanying' drawings, shown and herein described one form of apparatus embodying my invention. l Y

the line vmember 2a. is preferably provided with flanges 2b, 2, around its opposite peripheral edges, the flange 2b serving as a bearing surface which rests onthe floorwand the iange 2 serving as a support for the plate 2a', the latter being secured to the flange 2 in any well known manner. At 2d the plate 2a is formed with an opening to receive aliquid receiving vessel 3, which will be later described.

2@ indicates one or more cross members,

preferably integrally connected at their opposite ends to the wall of the annular member`2a. The cross bars 2 carry a vertically.

arranged axial member 2f having a bearing to receive a shaft or rod 4 of a valve mecha nism 4 which will be later described. At its lower end the rod ll has fixed to it a worm gear 4X.)

2g indicates a plurality of lugs depending from one yof the cross bars 2". These lugs are bored to receive and support the inner end of a driven shaft 5. The opposite end of the shaft 5 is supported in a bearing 2h provided Von the annular member 2a. 5'L indicates a worm fixed to the shaft 5` and meshing with the gear 4X to drive it in a well known manner. 5b, 5C, indicate fast and loose pulleys carried by the outer end of the shaft 5 and adapted to receive a belt caused to rotate.

It will be understood from the drawings that the worm gear 4X and worm 5a serve as reduction gearing, whereby the'speed of the (not shown), whereby the shaft 5 may be rod 4 as compared withthat of the driven` The wall of Y the bearing member 2f is preferably inclined upwardly :and inwardly s o astoiit within the flange 3b and serve as a support for the vessel 3. As will be understood from the drawings, the flange 3b co-operates with the outer wall of the vessel 3 to form an annular liquid receiving receptacle surrounding the rod 4".

6 indicates a conduit connected in any desired manner with an opening formed in the bot-toni of the receptacle 3. The conduit 6 is adapted to'conduct the liquid from i the receptacle to a cooler or other apparatus,

the plate 2a and table 8." As the flanges 7L '4 lat the opposite ends of each bracket are inclined relative thereto, but arranged parallel tal position.

to each other, it will be seen that they serve to support the adjacent bracket in an inclined position and the table 8 in a horizon- This arrangement provides for the use of an annular table 8of relatively large size. The brackets 7 may be T- y shaped in cross-section for the purpose of imparting rigidity to them.

The table or annular support 8 preferably comprises a series of arc sections 8 arranged end to end and each flanged along its opposite edges to strengthen it. 8a indicates a plurality of openings formed in thetable 8 and adapted to receive a series of independent or separate holding vessels 9. The openings 8a are preferably uniformly spaced from each other and disposed midway between the brackets 7. Each vessel 9 may compriseinner and outer walls to form a space between them.- This space may be filled with cork, as shown at 9a, or some other non-conductor of heat to provide a suitable insulating jacket. Each of said vessels is preferably provided with a detachable cover 9b. 9e indicates a flanged ring secured to the outer wall of `each vessel 9. .When a vessel 9 is inserted in an opening 8, the flange of the ri-ng9e will engage with the upper surface of the table 8 and serve to maintain the vessel 9 thereon. This construction serves to support the vessels in upright position and to permit their removal at will for cleaning and other purposes.

1 The valve mechanism 4 comprises inlet valve devices 4a and outletvvalve devices 4b. Of the inlet'valve devices 4a,` 4c indicates a member constituting a liquid receiver and The brackets are prefer `valve. The member 4c is preferably provided with a bottom 4d and an annular wall 4Q, which rotatably fits within a valve seat element 10. The outer wall of the valve member 4c is preferably conically shaped and the inner wall of the valveseat element is shaped to snuglyfit the outer conical'wall of the valve member 4c for well known reasons. 4f indicates a liquid port or duct formed in the annular wall 4e. The bottom 4? of the member 4c is preferably provided with an integral socket 4d to receive the upper end of theshaft or rod 4. The socket 4 may be adjustably secured to the rod 4n in any suitable manner. The valve.,seat element 10preferablyv comprises a ring memof holders or vesse'ls9) with whichthe port 4t successively registers as said valve member rotates. 10b indicates a series of pipe sections, preferably formed integral with the ringA member 10- and extending radially therefrom, there being a pipe section for each opening 10a. The functions of the pipe sections will be later described.

'berk formed with'a series of openings 10a (preferably uniformly spaced therearound and corresponding in number to the number The valve member 4C is preferably provided with an enlarged detachable casing 4C into the upper open end of which leads the discharge end of a liquid conduit a1". The conduit al leads from a suitable heater as shown at A inmy aforesaid Patent No. 1,076,604 dated October 21, 1913, or from any other suitable source of supply.

10 indicates a pipe, leading from the outer end of each pipe sectionv 10b to the adjacentvessel 9. The ipe 10c may extend through the side wall of? the adjacent holder 9, near. its upper end; the pipe 10c then preferably extends in a vertical direction downwardly, as shown at 10d, its open or discharge end terminating at a point near to or adjacent the bottom of the hol-der tol discharge the liquid in the bottom portion of the holder without unduly agitating or splashing the liquid or creating any froth. The pipe 10C may be made of two or more sections. lVhen the pipe 10c is formed of two sections, as shown in thedrawings, they are preferably connected by ay union at a point inside of the adjacentholder. The inner end of each pipe 10c is preferably detachably connected to the outer end of the adjacent pipe section 10b by ay coupling 10f.-

Of the outlet valve mechanism 4*. 11 indicates a valve 4member preferably comprising a circular plate 11a provided with a depending rim or wall 11b. which may be of conical shape and rotatably fitted within a valve4 seat member 12. The valve member 11 is formed with an opening through which the rods4 extends. The valve member ispreferably adjustably secured to the rod 4 vin any suitable manner. At oneside and bellO tween the plate 11a and rim 11", the Walls of the valve member 11 are thickened and formed with a duct 11, which conducts o. The valve seat element 12 preferably comprises a ring member formed with a series of openings 12a (preferably uni- -formly spaced therearound and correspending in number to the number of the holders .9) with which the port 11c succes sively registers as said. valve member rotates'. 1Qh indicates a series of pipe sections preferably formed integral with the ring member 12 and extending radially there from, there being a pipe section for each opening 12a. The functions of these pipe sections Will be laterdescribed.

13 indicates a pipe leading from the. outer end of eachpipe section 12 tothe adjacent vessel 9.

As shown in the drawings, the outer end of the pipe 13 leads to and is connected with a pipe section 9f by a Tunember 1?)a and coupling 13b. Each vesselV 9 is formed with a dischargeport 9f in its bottom andthe pipe section 9f is connected to the bottom so as to convey. the liquid from the port to the adjacent pipeJ 13.v The oppo site or inner end ofeach pipe 18`is preferably connected to the outer end ofthe adjacent pipe section 12b by a coupling 13C.

From the foregoing description it. will be understood that the pipes 10c With their unions with the pipe section 10b. and vessels 9 and the pipes 13 With their unions with the pipe sections 12b and vessels 9 serve as liquid tight connections 'between the inlet .valve devices la and outlet valve devices 4",

respectively; also, that the ring member 10 `and Walls of the valve member 4 .constitute the inlet valve devices Which-control the iiow of the liquid through the pipes 10c to the vessels 9 as the port if successively registers with the openings 10a; and that the ring member 12and Walls of the member 11 constitute the outlet valve devices which coiitrol the flow ofthe liquid through the pipes from the vessels 9 as the inlet port of the duct 11c successively registers with the openings 12: as a result of this construction, it will be seen that the vessels 9 are filled progressively and'discharged progressively. l

During the time that the port 4f is in registry with the opening 10a for an adja cent vessel 9, as the valve member 4c rotates, liquid will fioiv therethrough from the latter to the vessel to till the same, the speed of the valve member and the size of the openings 4f, 10a, being proportioned so that during such registry thereof sufficient liquid 10a for the adjacent vessel until the inlet.

port of the discharge duct 11c registers with the valve opening 12a of the vessel 9, where! upon the liquid Will flow by gravity from.

the vessel through the -outlet valve devices to the receptacle 3. The discharge port lof the duct 11C is preferably provided with a discharge pipe 14, ivhicli directs the liquid into the receiving vessel 3. As the ducts 4f, 11, and valve ports 10, 12a, are of substantially the same size and the valve members 4F", 11, rotate'y together and preferably uniformly, it Will be understood that substantially the same quantity of liquid may flow out of each vessel 9 as flowed-into itj in the same time interval.

T lievalve member 11 'for the outlet valve devices 11b is preferably so arranged angularly `on the rodfi relative-to the port 4f, thatt-he inlet port of the duct 11c Will register Wit-li the valve port 12- for that vvessel 9 next inl advance of the vessel 9 ,which at any time is being filled with liquid through the inlet valve devices 4:1. As a result of this arrangement, each vessel will be filled immediately'after it. has been emptied. HoW- ever, the valve members 4C and 11 may be positioned to so arrange the ports 4f, 11'

during which vthe liquid is held may be fixed according to any particular circumstances. It will therefore vbe seen that the liquid may beheld in the vessels 9 forany desire-d pre determined period, the extent of 'which Will depend upon the length and time of travel from the place ot' filling to the place of discharge. y lt-'ivill be obvious that the speed of the valve members can be .changed in various ways to increase or decreasev the period between the filling and emptying of the vessels. l

15 indicates a conduit leading from the pipe (L10. The pipe 15 may lead directly to ya suitable cooler, so as to conduct the liquid thereto when it is-unnecessary to treat thev liquid in the distributing and holding apparatus. I preferably providel a three-Way valve at the point of connection of the pipe liquid is maintained at a pasteurizing temperature for a predetermined period, it is desirable to quickly and uniformly heat the liquid to the predetermined temperature,

A .uniform manner; that is,'there should be a lfrom the outlet valve device 4b.

* duits and receptacles in the holding mecha= continuous iow of the liquid to and through the apparatus. The liquid is delivered to a receiving tank from which it flows to a heater. In passing through the heater the liquid is continuouslyand uniformly raised to the' desired temperature and is discharged from the heater b. means .of the pipe al?, which conveys the liquid to the receiving member 4. -As the v alve member le rotates, the port 4f thereof successively registers with the valve openingsI 10@ in the ring member 10 and permits a predetermined quantity of liquid l to How by gravity to each of the vessels, each duct registering with a valve port '10a for a given period of time, in the rotary movement of the valve member suilicie'nt, at least, to substantially fill the adjacent vessel.. Likewise, the discharge duct' 1lC successively registers with lthe valve openings lQ of the valv'e ring 12 and permits the automatic discharge of the vessels successively. From the foregoing description and operation it will be seen that the vessels will be automatically filled and emptied at .predetermined points.

. VThe vessels 9 are preferably arranged in a circular series about the valve mechanism 4 in order that they may be equally distant therefrom; tlfe valve membersi,c and 1-1 are preferably connected to and operated by a single driven member to simplify the construction and reduce t-hel number of working parts of the apparatus.

The'inlet valve devices 4a are separate The devices 4a are preferably arranged above the devices 4" and approximately in the plane of the upper edges ofthe holders 9. This form of construction permits me to extend each conduit l0c for theliquidinto the adjacent holderat a' point above the level attained by the liquid when vthe vessel is filled and -th n downwardly to a point near its bottom. rather than through the bottom of the ves.- sel. By providing separate inlet and outlet pipes 10C, 13, respectively, and connect ing them to the upper and lower ends, respectively of the holders 9, I insure the discharge into each holder 9 of all the-liquid delivered thereto before any liquid is again delivered to it. l

It Will be noted that all walls of the connism, with which any liquid to be treated .may come into contact, and parts of the valve mechanism, are readily accessible for the purpose of cleaning merely by disassembling them and adjacent parts or conduits;

also, ,thatthewessel 3, may, if desired, be removed for cleaning by disassembling the paits of the apparatus immediately above it.

In fact, when said parts are removed, the

tank Sinay be lifted bodily upwardly and removed from the apparatus for cleaning or replacing.

By extending theliquid inletA pipes l()c downwardly to and delivering the liquid near the bottom of each holder and then emptying the liquid through n. port in the bottom thereof, I am enabled to both fill and empty the vessels without splashing the liquid, unduly a'gitating it or causing frothing thereof.

To those skilled in the art of making ap` paratus of the class described, many alterations in construction and widely differing embodiments and applications ofmy inven tion Awill suggest themselvess without departing from the spirit and scope thereof. My disclosures and theV description herein are .purely illustrative and are notintended tobe in any sense limiting.

VVhatI claim is: y

-l. The combination of a series of holders,

'inlet valve devices common to said holders,

liquid tight connections between said inlet valve devices and each of said holders, outlet valve devices, separate connections between each-of said holders and said outlet valve devices, and means for operating the progressively discharging said holders.

' 2. The combination of a series of holders,

inlet valve devices,'liquid tight connections between said inlet'valVe devices and each ofsaid holders, outlet valve devices common to said holders, separate connectionsbetween the bottom of each of said holders and said outlet valve devices, and means for rotating the valves of said inlet and outlet valve devices lfor progressively filling said holders and progressively discharging said holders.

3. In` apparatus of the character described, the combination ofa series of holders,a liquid supply connection for each holderconnected thereto at its outer end, a liquid discharge connection for each holder connected thereto at its outer end, a valve mechanism common to the inner ends of said liquid supply connections, a separate valve mechanism common tothe inner ends of said liquid discharge connections, and means liquid supply connections, a separate valve.

having a portto-control the'flow ofliquid llO 'nectiom and means for operating said valves.

5. In' apparatus of'- the character. de-

scribed, the combination of a series of holders, a liquid supply connection for each holder leading to the upper end thereof, a liquid discharge connection for each holder leading trom-the lower end thereof, a valve having a port to control the flow of liquid successively to said liquid supply connections, a Separate valve having a port to control the How. of liquid successively from each liquid discharge connection, and means for operating said valves;

6. The 1 combination of holders, separate inlet and nection's for each holder leading to pointsV adjacent the bottom thereoi'a valve for controlling the tlowot liquid vsuccessively to said inlet7 connections, a, valve for controlling the iow of liquid successively ,from said dischargel connectiona'and means for oper,-

ating said valves.

7. The combination of a series of liquid holders, a liquid supply connection for each --offsaiell-'holdersr connectediheretoz. at ,its outer end, a'receiver having a discharge port arranged successively to register with the inner ends of said liquid supply connections, means for controlling the discharge `of liquid irom said holders, and means Jfor operating said receiver.

8. `The combination of a series of liquid holders, a liquid supply connection for each titi of said holders connected thereto atits outer end, av receiver having a discharge port arranged successively to register with the inner ends of said liquid supply connections, a liquid discharge connection for each 'holder connected thereto at its outer end, a valve l common to the inner ends of said liquid discharge connections and arrangedto control thev discharge therefrom successively, and

means for operating said receiver and said valve.

9. ln apparatus of the character described, the combination of a series of holders, a liquid supply connection for each holder leading to ogadjacent the bottom thereof, a liquid discharge connectionv for each holder leading from the bottomv thereof, a valve for controlling the supply of liquid successively to said liquid supply connection, a valve for controlling the discharge of liquid successively from said liquid discharge connections, and means for operating said valves.

l0. lin apparatus oi .the character described, the combination of a series -ot holders, a liquid supply connection for each holder, the inner `ends 'of said supply connections leading to a point above the level to which saii holders are lilled and their outer ends leading to or adjacent the bottoms thereof, a liquid discharge connection tor each holder, the outer ends ci said disdischarge conbottoms of said holders and their inner ends' extending to a point in the `plane of or be# low said bottoms, a valve for supplying liquid successively to the inner ends of said supply connections, a valve for discharging liquid successively from the inner ends of said discharge connections, and means for )perating said valves'.

l1.A ln apparatus o'f the character de` scribed, the combination of a series of holders each formed with an opening in its bottom, a liquid supply connection for each holder, the inner ends of said supply connections leading to a point above the level to vhich said holders are iilled With liquid and their outer ends leading to oradjacent the' bottoms thereof, a v alve for supplying liquid successively to the inner ends of said liquid supply connections, and means .for controlling the discharge of liquid succes.- sivelythrough the openings in the bottoms of said holders.

12. The combination of a series of' liquid i 'member being formed with a port or duct to control the flow of liquid through the openings in the outer member, liquid supply connections between the outer member of the inlet valve devices and each of said holders, liquid discharge connections between each of said holders and the outer member o'f said outlet valve devices, und means for rotating the rotatable members ot said. inlet and outlet valve devices.

1B. The combination ot u series oft liquid holders. inlet valve devices comprising an inner member and an outer member, one ot which is rotatable relative to the other, the outer member being 'formed with a series of valve openings and the inner member being termed with a port or duct to control the flow of liquid through the openings in the outer member7 `outlet valve devices comprising an inner member and an outer member, one ot which is rotatable relative to the other, the outer member being formed With a tseries oit valve openings and the inner member being formed with a port or d uct to control the flow ot liquid through the openi ings inl the outer member, liquid supply connections between the outer member of -the inlet valve devices and each ot said tween each of said holders and the outer memberA of said outlet valvedevices, and 'meansvfor rotating the rotatable members of said inlet andoutlet valve devices one iof said innermembers being adjustable relative to the other.

14. In apparatus'of the character described, the combination of a series of liquid holders, inlet valve devices comprising an 10 inner member and an outer member, one of I which is rotatable relative to the other, the 'outer member lbeing formed with a series \of openings and the inner member being formed with a port or duct to control the How of liquid through the openings in the outer member, outlet valve devices comprising an inner member and an outer member, one of which is rotatable relative to the other, the -outer member being formed with a series of openings and the inner member being formed with a port o'r duct to control the discharge of liquid through the openings in the outer member, aliquid supply connection between each opening .in the outer member of the inlet valve devices land one of said holders, a liquid discharge connection between each of the openings in the outer member of said outlet valve devices and one of said holders, and means for operating the rotatable members of said inlet and outlet valve devices, the control ports of the said inner members of said inlet and outlet valve devices being disposed in different positions angularly, relatively to each other, to register simultaneously with one opening for the liquid'supply connection of one holder and one opening for the liquid discharge connection of another holder, whereby one holder may be lilled while the other is emptied.

15. In apparatus of the class described, the combination of a series of liquid' holders, a series of supply pipes, each connected to one of said holders, the inner ends of said pipes being arranged in the same plane and about and an equal distance from an axis, a valve rotatable about the axis common to the inner ends of said supply pipes and arranged to successively register therewith, a series of discharge pipes, each connected to one of said holders, the inner ends of said discharge pipes being arranged in the same plane and about and an equal distance from' an axis, a valve rotatable about the axis common to the inner ends of said discharge pipes and arranged to registe1 successively therewith.

16. 'In apparatus of the class described,

the combination of a series of liquid holders, a series df supply pipes, each connected to one of said holders, the innerI ends of said pipes being arranged in the same plane and Aabout and an equal distance from an axis,

ranged to successively register therewith, a

series of discharge pipes, each connected to one of said holders, the inner ends of said discharge pipes `being arrangedl in the same plane and about and an equal distance from an axis, a valve rotatable about the axis common to the inner ends of said discharge pipes and arranged to register successively therewith, and means for operating said valves.

17. In 'apparatus of the class ldescribed, the combination of a series of liquid hold ers, a series of supply pipes,` each connected to one ofV said holders, the inner ends of said pipes being arranged in the same plane and about and an equal distance from an axis, a valve rotatable about the axis common to the innery ends of said supply pipes and arranged to successively register/therewith, a series of discharge pipes, each connected to one of said holders, the inner ends of said discharge pipes being arranged in the same plane and about and an equal distance from an/axis, a valve rotatable about the axis common to the inner ends of said discharge pipes and arranged to register successively therewith, means, including a shaft, for connecting said valves together, and means for operating said shaft. i

1S. In an apparatus of the class described, combination with a plurality y of vats grouped about a common center, of a centrally located shaft, a receptacle for the incoming milk carried by the top of the shaft, and having an eccentrieally located discharge aperture, a receiving member for each of the vats with which the discharge aperture is adapted to register seriatim, and means for rotating the sliaft.'

19. In an apparatus of the class described, the combination with a plurality of vats grouped about a common center, of a centrally located shaft, a receptacle for the incoming milk carried by the top of the shaft and having an eccentrieally located discharge aperture, a receiving member for each of the vats with which the discharge aperture is adapted to register seriatim, and means for rotating the shaft, each of said members having a pipe extending therefrom to the bottom of its associated vat.

In testimony whereof I affix my signature, in the presence of two witnesses.

LEROY S. PFOUTS.

iVitnesses z IVILLIAM H. lWrLLnn, ORPHA LEE. 

